Key found Abbey st dublin ERA near pennys store

Silver grey metal key with ERA brand name on it single key, no key ring, found on road, abbey street about 20 yards from pennys store dublin 1 , found about 3 days ago, today 31, 7/ 2019. looks like standard door key , like the keys in this image link. https://www.locktrader.co.uk/ERA-135-Traditional-Cylinder-Nightlatch.html